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| author | Sricharan <r.sricharan@ti.com> | 2011-11-15 09:50:03 -0500 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2011-11-15 22:25:50 +0100 |
| commit | 78f455c055ddf55a1a2dd6ae5e2d060ed2e5bd0e (patch) | |
| tree | c124c8e56d72e9e46f70516fa9dd3dabdac22d9a /arch/arm/include/asm/arch-omap4/omap.h | |
| parent | bb772a594493092adfb18a56889e0bce855eed99 (diff) | |
| download | talos-obmc-uboot-78f455c055ddf55a1a2dd6ae5e2d060ed2e5bd0e.tar.gz talos-obmc-uboot-78f455c055ddf55a1a2dd6ae5e2d060ed2e5bd0e.zip | |
omap4/5: Add support for booting with CH.
Configuration header(CH) is 512 byte header attached to an OMAP
boot image that will help ROM code to initialize clocks, SDRAM
etc and copy U-Boot directly into SDRAM. CH can help us in
by-passing SPL and directly boot U-boot, hence it's an alternative
for SPL. However, we intend to support both CH and SPL for OMAP4/5.
Initialization done through CH is limited and is not equivalent
to that done by SPL. So U-Boot has to distinguish between the
two cases and handle them accordingly. This patch takes care
of doing this.
Signed-off-by: sricharan <r.sricharan@ti.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
Diffstat (limited to 'arch/arm/include/asm/arch-omap4/omap.h')
| -rw-r--r-- | arch/arm/include/asm/arch-omap4/omap.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-omap4/omap.h b/arch/arm/include/asm/arch-omap4/omap.h index 0ade8961ab..e9942574f2 100644 --- a/arch/arm/include/asm/arch-omap4/omap.h +++ b/arch/arm/include/asm/arch-omap4/omap.h @@ -191,5 +191,21 @@ struct control_lpddr2io_regs { #define DEV_DESC_PTR_OFFSET 0x4 #define DEV_DATA_PTR_OFFSET 0x18 #define BOOT_MODE_OFFSET 0x8 +#define RESET_REASON_OFFSET 0x9 +#define CH_FLAGS_OFFSET 0xA +#define CH_FLAGS_CHSETTINGS (0x1 << 0) +#define CH_FLAGS_CHRAM (0x1 << 1) +#define CH_FLAGS_CHFLASH (0x1 << 2) +#define CH_FLAGS_CHMMCSD (0x1 << 3) + +#ifndef __ASSEMBLY__ +struct omap_boot_parameters { + char *boot_message; + unsigned int mem_boot_descriptor; + unsigned char omap_bootdevice; + unsigned char reset_reason; + unsigned char ch_flags; +}; +#endif #endif |
